<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<table border="1" width="1000">
    <tr>
        <td colspan="3">已登录信息如下：</td>
    </tr>
    <tr>
        <td>张三</td>
        <td>男</td>
        <td>18岁</td>
    </tr>
    <tr>
        <td>李四</td>
        <td>女</td>
        <td>20岁</td>
    </tr>
</table>
</body>
</html>